Manufacture of artificial stone.



W. LAKE.

MANUFAGTURE 0F ABTH'IGIAL STONE.

APPLICATION FILED DEO.15, 1903. 938,248, Patented 0013. 26, 1909.

win'e cse complished by moldin each 'ing and setting takes wnlno'r m n, or wnsnnie'ron, ms'rnrc'r or commnm.

mono-roan or mus cian sroxn.

speci cation 61' Letters Patent.

Patented oct. 26, 1909.

Application filed December i5, 1908 Serial No. 467,668.

To all whom '5? My 309M 17: Be it known that I,WILMOT LAKE, a citizen of the United States, 'resid'ingat Washington, in the District of Columbia,

ments'in Manufacture of Artificial btonef of which the" following is a specification.

This invention relates to the manufacture of artificial stone from ement, concrete and the like, and pertainsespecially to method and means for'separating' a body of cement or concrete into sections or' independent bodies before drying or hardening.

In the practifcaluse of cement or concrete as or in the place of stone it is obvious that to produce the samein sections, slabs and blocks is most desirable. This. has been acb ock or e ti separately, or by sawing or otherwise shaping the cem'entaftci' it has become set, dry andhard. I

The purpose of this invention isto effect a severance or separation of 'a'body of concrete, cement or the like'into. sections, slabs or blocks (which has been assembled or formed for drying and setting) before dryplace, so that such whole body of cement dr es'and 'hardens into separate and independent pieces or sections capable of indepen ,ent manipulation and application. I

The object of the invention is to provide means for cutting through a body ofcement or like substance before drying or hardening and leavin a separating medium'in the furrows or pat s of "the cutters for separating the concrete into independent sections,

bodies or blocks.

A further object of the invention is to provide a traveling sand carrier having sand discharge plows'and adapted to be slid or rolled over a body f formed cement or con crete before it becomes or set for cutting the cement into sections and for deposlting sand in the furrows of the plows preparatory to drying the cement. A still further object of the invention is to provide novel and peculiar sand feeding plows for cutting a wet body of cement into sections so as to leave the sand between such sections during the of the cement. T

Other objects, advantages and improved results are attainable in the practical application of the invention.

In the accompanying drawings forming part of this application:

have invented certain new and useful Im r0V,c'

same parts throughout the 'is a slide for each of bod'y,

Figure 1 is' a perspective view showing the application of the invention. Fig. 2'is a long'tudinal sectional view of'the device formin'g the subject of this invention. Fig. 3 is a cross section of what is shown in'Fig. 2. Fig. 4 is a detail perspective view of one of the plows. Fig. 5 is an elevation showing the concrete separated. Fig. 6 is a cross section on the line 412 -40, Fig. 5.

' The same reference numerals denote the" a v several views of he draw For purposes of illustration a bed of wet concrete'l, is shown formed or packed between two beams forming rails 2, for a car or traveling receptacle 3, containing sand 4.

The can?) is boa-like, having closed back and sides, and an inclined front 5 terminating at its lower end in a bottom piece 6, provi ed with openings or sand 'passaged'T. The interior of the box or car is separa into a series of sand compartments by walls 8, which incline from each otherfrom their top the bottom piecefi, and flush with thepassages 7.

A' series. of cutters or plows 9 depend from the bottom piece 6, and have flanges 10 suitably secured to the inclined front '5. The rear end of the plows have a slotll, which opens through the top, bottom and said end, and which forms a discharge passage for the sand from the openings 7 to,the plow furrows, so that the feeding of sand to the furrows is simultaneous'with the making of the furrows.

The flow of sand from the car through the plow is controlled by cut-ofi slides 13, preferably operated over the openings 7. There said openings and they project from a bar 14 pivoted to a hand lever 15 fulcrumed at 16. Any other suit. able means miiiy be employed for effecting a slidable cut-,0 Y

It is obvious that the car may be pro-- vided with suitable rollers or wheels for the track, and that various modifications of the mechanical construction and arrangement of parts may be made in the practical application of the invention, without departing from the spirit of the invention.

In operationafter the concrete or cemerit has been assembled or formed in a and while it is yet soft and wet, the car which is supplied with sand, is slid or rolled over the concrete or cement so ilmi the plows cut through the cement, and at the same time deposit sand in the. plow cuts or furrows where it is left vduring the drying out and hardening of the cement, thus'sepa rating ordividing such body of wet cement into dry sections, slabs or "blocks.

It will be seen that sand is deposited by the plows intothe cuts orv furrows simulvtory to making artificial stone, which coni ngs therein,

there taneously with the making of the cuts or furrows by the plows.

Having thus described. my invention what I claim as new and desire to secure by Letters Patent is:

1. The methodof separating a body of wet concrete or cement into sectlons preparasists 1n movmg a receptacle containing sand over the said wet body, simultaneously spacing said 'body and filling sand into the spaces fromand during such movement of the receptacle, allowing the sections to dry with thesand between them and then separatin .thesections and removing the sand om.'- '2; In themanu'fa cture of artificial stone, a sand receptacle adapted to be moved over a body of wetima'terial prepared for such stone, and means "carried by the receptacle through said body for simultaneously separating it into sections and depositing sand from the receptacle between the sections.

3. In the manufacture of artificial stone, a sand car adaptedto be moved over a body of wet material from which such stone is made, such car having sand discharge openanda series of cutters or plows carried by the car through the said wet body for separating it intosections and depositing the sand between the sections simultaneously with such separation. c

4. In the manufacture of artificial stone,

a sand box,or receptacle adapted to be 7 moved over a body of wet material from which such stone is made, said box having sand discharge openings in the bottom thereof, and a plurality of cutters or plows carried by the box and havlng sand passages therethrough and adapted to out said wet body into sections and to deposit the sand in the cuts simultaneously with the making of such cuts for separating such sections during drying and setting.

5. In the manufacture of artificial i I the combination, with sand discharge openings therein, of a .plurality of cut-ters or plows depending from the box and having sand passages there from the said openings into I the plow cuts or furrows for separating a through leading wet body of stone material into sections before drying.

6'. In the manufacture of, artificial stone,

a sand box having 

